<template>
  <div class="common-emoji">
    <div class="emoji-main">
      <el-popover
        :disabled="disabled"
        ref="popover"
        v-model="isEmojiShown"
        popper-class="emoji-popover"
        placement="top-start"
        width="400"
        trigger="click"
      >
        <el-tooltip slot="reference" class="item" effect="dark" :content="$t('component.emoji.tooltip1')" placement="top">
          <i
            :class="['iconfont','icon-smile',disabled?'smile1':'smile']"
          >
          </i>
        </el-tooltip>
        <div class="m-chat-emoji" v-if="emojiInit">
          <div class="emoji-content">
            <div class="cnt">
              <span
                class="emoji-item"
                v-for="(name, index) in emojiList"
                :title="name"
                @click.stop="addEmoji(`[${name}]`)"
                :key="index"
              >
                <img
                  :src="`${emojiMap.get(`[${name}]`).url}`"
                  style="width:32px;"
                />
              </span>
            </div>
          </div>
        </div>
      </el-popover>
    </div>
  </div>
</template>

<script>
import emojiConfig from './emoji';

export default {
  name: 'common-emoji',
  props: {
    disabled: {
      typeof: Boolean,
      default: false,
    },
    inputRef: {},
    mode:{
      type:String,
      default:""
    }
  },
  data() {
    return {
      emojiList: emojiConfig.emojiList,
      emojiMap: emojiConfig.emojiMap,
      emojiSow: false,

      position: void 0,
      emojiInit: false,
      isEmojiShown: false,
    };
  },
  computed: {},
  watch: {
    isEmojiShown(newValue) {
      if (newValue) {
        this.showEmoji();
      } else {
        this.hideEmoji();
      }
    },
  },
  methods: {
    // 失焦时暂时保存光标位置
    contentBlur(el) {
      this.position = this.getCursortPosition(el);
      setTimeout(() => {
        this.position = void 0;
      }, 500);
    },
    // toggleEmojiBox () {
    //   this.isEmojiShown = !this.isEmojiShown
    //   if (this.isEmojiShown) {
    //     this.showEmoji()
    //   } else {
    //     this.hideEmoji()
    //   }
    // },
    showEmoji() {
      this.emojiInit = true;
      this.emojiShow();
      this.$nextTick(() => {
        this.isEmojiShown = true;
      });
    },
    emojiShow() {
      this.focusAndAdd();
    },
    hideEmoji() {
      this.isEmojiShown = false;
      // this.emojiHide()
    },
    emojiHide() {
      this.isHideEmoji = false;
    },
    addEmoji(emojiName) {
      if(this.mode=="im"){
        this.$emit('setEmoji',emojiName)
      }else{
        this.inputMsg(emojiName);
      }
      this.hideEmoji();
    },
    // 添加标签文本
    focusAndAdd(txt) {
      let inputRef = this.inputRef || this.$parent.$refs.replyInput;
      if(!inputRef) return
      let el = inputRef.$el.querySelector('textarea');
      this.position
        || (this.position = {
          start: el.value.length,
          end: el.value.length,
        });
      this.setCaretPosition(el, this.position);
      txt && this.insertAtCursor(el, txt);
    },
    // 获取光标位置函数
    getCursortPosition(ctrl) {
      let CaretPos = void 0;
      if (document.selection) {
        // For IE
        ctrl.focus();
        let Sel = document.selection.createRange();
        Sel.moveStart('character', -ctrl.value.length);
        CaretPos = Sel.text.length;
      } else if (ctrl.selectionStart || ctrl.selectionStart === 0) {
        CaretPos = {
          start: ctrl.selectionStart,
          end: ctrl.selectionEnd,
        };
      }
      return CaretPos;
    },
    // 设置光标位置函数
    setCaretPosition(ctrl, pos) {
      if (ctrl.setSelectionRange) {
        ctrl.focus();
        ctrl.setSelectionRange(pos.start, pos.end);
      } else if (ctrl.createTextRange) {
        // For IE
        let range = ctrl.createTextRange();
        range.collapse(true);
        range.moveEnd('character', pos.start);
        range.moveStart('character', pos.end);
        range.select();
      }
    },
    // 光标位置插入文本，isRange：插入后是否是选中状态
    insertAtCursor(myField, myValue, isRange = false) {
      if (document.selection) {
        // For IE
        myField.focus();
        let sel = document.selection.createRange();
        sel.text = myValue;
      } else if (myField.selectionStart || myField.selectionStart === 0) {
        let startPos = myField.selectionStart
        let endPos = myField.selectionEnd
        let value = myField.value.substring(0, startPos)
            + myValue
            + myField.value.substring(endPos, myField.value.length)
        this.$emit('changeInput', value)
        this.$emit('changeInput1', myValue)
        this.$nextTick(() => {
          myField.selectionStart = startPos + (isRange ? 0 : myField.value.length);
          myField.selectionEnd = startPos + myValue.length;
        });
      } else {
        let value = this.formData.content + myValue
        this.$emit('changeInput', value)
        this.$emit('changeInput1', myValue)
      }
    },
    onInputFocus(e) {
      setTimeout(() => {
        // todo fixme 解决iOS输入框被遮挡问题，但会存在空白缝隙
        e.target.scrollIntoView();
        // pageUtil.scrollChatListDown()
      }, 200);
    },
    // 获取带有表情的信息
    inputMsg(msg) {
      this.focusAndAdd(msg);
    },
    selectEmoji(emoji) {
      // 由触发父组件事件，增加表情文案
      this.$emit('add-emoji', emoji);
    },
  },
};
</script>

<style lang="scss" scoped>
.common-emoji {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  right: 12px;
  height: 16px;
  line-height: 16px;
  .emoji-main {
    position: relative;
    display: initial;
    .iconfont {
      // color: #8c8c8c;
    }
  }
}
.popover {
  height: 200px;
}

.m-chat-emoji {
  position: absolute;
  top: 0;
  left: 0;
  width: 400px;
  background-color: #fff;
  .emoji-content {
    position: relative;
    width: 100%;
    height: 200px;
    background: #fff;
    overflow-y: auto;
    .cnt {
      position: relative;
      display: block;
      margin: 8px auto;
      text-align: left;
    }
    .emoji-item {
      display: inline-block;
      width: 28px;
      height: 28px;
      padding: 2px;
      vertical-align: middle;
      /*border: 1px solid #fff;*/
      /*margin-left: -1px;*/
      /*margin-bottom: -1px;*/
      img {
        width: inherit;
        height: inherit;
      }
    }
    .pinup-item {
      width: 28px;
      height: 28px;
    }
  }

  .emoji-content .cnt {
    width: 100%;
  }
}
.smile {
  color: #8c8c8c;
  cursor: pointer;
}
.smile1 {
  color: #bfbfbf;
  cursor: not-allowed;
}
.smile:hover {
  color: $color-primary-light-6;
}
</style>

<style lang="scss">
.emoji-popover.el-popover {
  height: 200px;
  border-radius: 8px;
  overflow: hidden;
}
</style>
